Home / 28,673.13-39,587.31-18,468.75

Finding the Fourth Proportional to 28,673.13, 39,587.31 and 18,468.75

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Solution

The fourth proportional to 28,673.13, 39,587.31 and 18,468.75 is: 25,498.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.13 : 39,587.31 = 18,468.75 : x
  2. Step 2: Convert to fraction form
    28,673.13/39,587.31 = 18,468.75/x
  3. Step 3: Cross multiply
    28,673.13x = 39,587.31 × 18,468.75
  4. Step 4: Simplify right side
    28,673.13x = 731,128,131.56
  5. Step 5: Solve for x
    x = 731,128,131.56/28,673.13
  6. Step 6: Final answer
    x = 25,498.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.